UltraTileFix ProLevel Two flexible floor leveller extended information:
|Applied Thickness||Coverage per Unit (approx)||Consumption Per 10m2 Area|
|30mm||0.52m2||19.2 bags + 8.1x10Kg units aggregate|
Suitable Surfaces & Substrates:
- Concrete subfloors
- Terrazzo/granolithic ceramic tiles
- Radiant electrical underfloor heating system
- Tamped or pan floated concrete
- Anhydrite/calcium sulphate/gypsum based screeds
- Vinyl tiles
- Sand/cement screeds
- Plywood/tile backer board
- UltraFloor DPM IT
- Existing smoothing underlayments
- Warm water underfloor heating
- Pre-smoothing prior to DPM or MVS
Ultra Tile Fix ProLevel Two technical information:
|Working time at 20°C||*20-30 Minutes|
hardness time at 20°C
|*2.5 Hours (3mm application)|
|Commence the tiling process||24 Hours (2-15mm application)
(*Depending on substrate porosity, nature of flooring and notes in Curing & Drying above.)
|Compressive Strength (N/mm2)||28 Days: 25.0 (to BS EN 13892-2)|
|Flexural Strength (N/mm2)||28 Day: 5 (to BS EN 13892-2)|
Subfloor Preparation, which Substrate?
Concrete Subfloors: Power floated concrete should be treated as non- porous. Mechanically abrade (shotblast or scarify) to remove surface hardeners and expose the cement/aggregate. Apply UltraTileFix ProPrimer neat in a thin uniform coating, allowing it to dry fully (usually 1-2 hours).
Tamped or Pan Floated Concrete: Should be treated as porous, and any laitance or weak material should be mechanically removed to ensure a sound, dry and dust-free surface. Apply UltraTileFix ProPrimer diluted 3:1 with clean water and allow to dry fully (usually 1-2 hours).
Sand/Cement Screeds: These should be strong enough for an application of UltraTileFix ProLevel Two. Weak, friable or damaged screed should be uplifted and repaired. Apply UltraTileFix ProPrimer diluted 3:1 with clean water and allow to dry fully (usually 1-2 hours). Two-coat application may be required for very absorbent screeds.
Existing Smoothing Underlayments: UltraTileFix ProLevel Two can be used over most intact cementitious cement underlayments. Remove adhesive residues and treat as an absorbent floor. Apply UltraTileFix ProPrimer diluted 3:1 with clean water and allow to dry fully (1-2 hours). Apply a second coat diluted 1:1 with clean water allowing it to dry to a clear film (1-2 hours). Note: application is only suitable on subfloors that are in equivalent strength to UltraTileFix ProLevel Two.
Terrazzo/Granolithic Ceramic Tiles: These must be securely bonded, and any surface treatment should be mechanically removed. A good mechanical key should be ensured by abrading the surface using a Surface Texturing & Grinding (STG) machine (a diamond disc is recommended). These subfloors can be treated as low porosity and primed using UltraTileFix ProPrimer neat.
Calcium Sulphate/Anhydrite/Hemihydrate Screeds: See relevant manufacturer’s technical datasheet. A barrier primer application is required. If moisture is above 75%RH we do not recommend using a surface DPM. These screeds often incorporate warm water underfloor heating systems which can be used, along with dehumidifiers, to speed up the drying process. Screed manufacturers normally suggest this can be conducted after 7 days minimum curing. Mechanically remove any laitance or weak material to leave a clean, dry and dust-free surface. We recommend an STG machine with suitable mesh grinding disc of 60-100 grade grit. Apply UltraTileFix ProPrimer diluted 3:1 with clean water and allow to fully dry overnight. Apply a second coat diluted 1:1 with clean water allowing it to dry to a clear film (usually 1-2 hours).
Plywood/Tile Backer Board: Plywood must be of flooring grade and mechanically fixed to a sound strong base. UltraTileFix ProLevel Two is only recommended for use with plywood of 15mm thickness and greater. Tile backer boards of 6mm thickness. Plywood must be sealed on the underside and along all edges to ensure moisture absorption from beneath is kept minimal. For thinner flooring grade plywood subfloors contact UltraTileFix’s technical department. Plywood and tile backer board absorbency differs depending on the nature of the surface. Normally a diluted coat of UltraTileFix ProPrimer (3 :1 with clean water) is recommended. For dense surfaces of very low absorbency apply UltraTileFix ProPrimer neat in a thin uniform coating. Allow primer coats to fully dry.
Warm Water Underfloor Heating (UFH): Systems must have been fully commissioned and brought up to their maximum temperature, and ideally switched off 48 hours before application. In the absence of other heat sources, the UFH may be set to ‘cutback’ position to achieve an air temperature of 15°C. Any expansion or movement joints must be carried through to the floor covering surface.
Radiant Electrical Underfloor Heating System: UltraTileFix ProLevel Two can also be used over electrical UFH systems where the cables are fixed to a sound strong mechanical fixed cement faced backer board. Apply UltraTileFix ProPrimer diluted 3:1 with clean water and allow to dry fully (usually 1-2 hours). It may also be used where electrical UFH is used over cementitious or calcium sulphate subfloors. Priming should be as per the substrate. In all cases UltraTileFix ProLevel Two must be applied at a thickness of 5mm above the cables for resilient, textile and timber applications and a minimum of 3mm for application of stone, ceramic or porcelain products.
Vinyl Tiles: Not all vinyl tile flooring is suitable to be levelled/tiled over. Cushioned or flexible vinyl tiles should not be overlaid and must be removed along with the adhesive residue. Hard vinyl tiles should be lightly abraded and then primed with UltraTileFix ProPrimer neat.
UltraFloor DPM IT: Applications should be carried out within 36 hours of DPM application (see DPM IT datasheet). The DPM must then be primed with UltraTileFix ProPrimer neat in a thin uniform coating, allowing it to dry fully (usually 1-2 hours).
Pre-smoothing prior to DPM or MVS: UltraTileFix ProLevel Two can be used to on cementitious subfloors with residual moisture >75%RH to pre-smooth prior to applying an UltraFloor epoxy DPM. Prepare the subfloor to leave a lightly textured dust free surface. Either prime with UltraTileFix ProPrimer diluted 3:1 with clean water and allow to fully dry or lightly dampen with clean water, allowing the surface to matt off. This will reduce pinholing. Note: pre- smoothing of subfloors where there is an absence of a base DPM can be carried out provided there is no risk of hydrostatic pressure, and all previous materials have been removed to leave the cementitious base. If in any doubt always apply the DPM directly to the original subfloor.
For any other scenarios please call UltraTileFix Technical Services for advice.